公开(公告)号：US20210109432A1

公开(公告)日：2021-04-15

申请号：US17065588

申请日：2020-10-08

Applicant: Qisda Corporation

Inventor： Chien-Hung LIN ,  Tzu-Huan HSU

IPC: G03B21/20 ,  G03B21/16 ,  H05B47/105

Abstract: A light source module, a projector using the same and a light source control method are disclosed. The light source module includes a laser light source, a temperature sensor, a light source driver and a controller. The temperature sensor is adjacent to the light source and configured to sense a light source temperature of the laser light source. The controller is configured to: (1) determine whether the light source temperature reaches a first temperature value; (2) if yes, control the light source driver to drive the laser light source to illuminate by a first current; (3) determine whether the light source temperature changes from the first temperature value to a second temperature value different from the first temperature value; and, (4) if yes, control the light source driver to drive the laser light source to illuminate by a second current different from the first current.